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- 1. 1<br />MORE ABOUT CIRCLES<br />FEATURING TOPICS: <br /><ul><li>CIRCLE
- 2. AREA OF CIRCLE
- 3. DIAMETER OF CIRCLE
- 4. RADIUS OF A CIRICLE
- 5. CIRCUMFERENCE OF A CIRCLE
- 6. CHORD OF CIRICLE
- 7. TANGENT OF A CIRICLE
- 8. SEGMENT OF A CIRLCE
- 9. SECANT OF A CIRCLE</li></li></ul><li>2<br />CIRCLE<br />A circle is a simple shape consisting of those points in a plane which are at the same distance from a given point called the centre.<br />
- 10. 3<br /><ul><li>RADIUS</li></ul>The common distance of the points of a circle from its center is called radius.<br />
- 11. 4<br /><ul><li>DIAMETER</li></ul>The diameter is a line segment that connects two points on the circle and goes through the center of the circle. It is always twice as long as the radius.<br />
- 12. 5<br /><ul><li>CHORD</li></ul>A chord is any line segment whose endpoints are at any two points on the circle and it doesn’t pass through the centre.<br />
- 13. 6<br />TANGENT<br />The Tangent is a line which touches the circumference at only one point. A tangent is always perpendicular to the radius.<br />
- 14. 7<br /><ul><li>SECANT</li></ul>A secant is an extended chord: a straight line cutting the circle at two points.<br />
- 15. 8<br /><ul><li>SEGMENT</li></ul>A segment is a region bounded by a chord and an arc lying between the chord's endpoints<br />
- 16. 9<br />CIRCUMFERENCE OF A CIRCLE<br />CircumferenceThe circumference of a circle is merely the boundary of the circle or rather its perimeter. It’s defined as: C = 2 × π × r <br /> where: C = Circumference, r = radius, and π = 3.1415 ....<br />
- 17. 10<br />SECTOR OF A CIRCLE<br />A circular sector or circle sector, is the portion of a circle enclosed by two radii and an arc, where the smaller area is known as the minor sector and the larger being the major sector. Its formula is: Converting the central angle into degrees gives:<br /> x/360.TT r2<br />
- 18. 11<br />AREA OF A CIRCLE<br />The area of a circle (the region occupied by a circle) is π r2 when the circle has radius r. Here the symbol π (Greek letter pi) denotes the constant ratio of the circumference of a circle to its diameter. <br />
- 19. 12<br />SOME FORMULAS RELATED TO CIRCLE<br /><ul><li>Diameter = 2 x radius of circle
- 20. Circumference of Circle = 2 π x radius where π = = 3.141592...
- 21. Area of Circle: area = π r2
- 22. Length of a Circular Arc: (with central angle ) if the angle is in degrees, then length = x (π/180) x r
- 23. Area of Circle Sector: (with central angle ) if the angle is in degrees, then area = (/360) π r2</li></li></ul><li>13<br />THANK YOU FOR LEAFING THROUGH OUR PRESENTATION<br />
- 24. 14<br />CREDITS<br />ANANT AGARWAL X-B<br />PRANJAL SHARMA X-B<br />RAJ KISHORE SINGH X-B<br />ASHISH SINGH X-B<br />

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